Carbonator.



P. E. MALMSTROM.

- CARBONATOR.

APPLICATION FILED JUNE 10, 1909.

Patented Oct. 27, 1914.

4 SHEETS-SHEET 1.

ww/wfw F6561" E. .Mamfrom 1H5 NORRIS PETERS cn PHOTU-LITHdH WASHINGYON D4 P. E. MALMSTROM.

OARBONATOR.

APPLICATION l'ILED JUNE 10, 1909. 1,1 14,780. Patented 0ctfi27, 1914.

4 SHIJBTS-SHEBT 2.

HTEVYTFERIS FE'FETiS 126T, FFTO P. E. MALMSTROM.

GARBONATOR.

APPLICATION IILBD JUNE 10, 1909.

1,1 14,780. I Patented Oct. 27, 1914.

4 SHEETS-SHEET 3.

IHE NORRIS PETERS CO PHOTO LITHO.. WASHINGTON, D. C.

P.v B. MALMSTROM.

GARBONATOR. APPLICATION TILED JUNE 10, 1909. I 1,114,780. Patented 001127, 1914.

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' m ,1 m 75 Fifi Es? 63 73 5E ii 6" 7 a? l 5 v 71 4 9% 9!? a? I "7' V 62 4 66 I THE NORRIS PETERS CO, PHOTU-LITHJ, WASHINGTON, D. C,

UNITE s'rATEs PATENT OFFICE.

PETER E. IVI ALMSTROM, OF NEW YORK, N. Y., ASSIGNOR T UNITED CENTADRI'NK MANUFACTURING COMPANY, A CORPORATIONOF NEW YORK.

GARBONA'IOR.

Patented Oct. 2'7, 1914. Serial No. 501,237.

To all whom it may concern:

Be it known that I, PETER E. MALMsTRoM,

a citizen ofthe United States,.and a resination. This object is accomplished by my im'ention, one embodiment of which is here inafter set forth.

For a more particular description of my invention, reference is to be had to the accompanying drawings forming a part hereof, in which:

Figure l is a perspective view of my complete apparatus. Fig. 2 is a longitudinal section of a carbonator taken on the line 22 of Fig. 3, looking in the direction of the arrows. Fig. 3 is a sectional view taken on the line 33 of Fig. 2, looking in the direction of the arrows. Fig. l is a plan View of a venting device. Fig. 5 is a sectional view taken on the line 55 of Fig. 4:, looking in the direction of the arrows. Fig. 6 is a side elevation of the same taken at right angles to the view shown in Fig. 5. Fig. 7 is a plan view of a check valve. Fig. 8 is a sectional view taken on the line 88 of Fig. 7, looking in the direction of the arrows Fig. 9 is an inverted plan view of the check valve. F ig. 10 is an end elevation, partially in section, ofthe carbonic acid gas and outlet valve. Fig. 11 is a plan view of the same. Figs. l2 and 13 are sectional views taken on the lines 1212 and 1818 respectively, of Fig. 10, looking in the direction of the arrows.

Throughout the various views of the drawings, similar reference characters designate similar parts.

The general idea of my improved carbon; ator can be had from Fig. 1 in which 1 indicates a filter supplied with water from any suitable source. The water passes from the filter 1 through a pipe 2 to a carbonator 3 which is supplied with carbonic acid gass gas from a tank 4: by means of suitable pipes and connections, described below. From the carbonator 3 the carbonated liquid passes to a suitable receiving tank 5. through suitable pipes where it is stored, and if desired. it may also pass to a refrigerator 6 prior to being drawn for use, by any suitable means, not shown.

The filter 1 needs no detailed description as it forms no part of my invention.

The pipe 2 runs to a check-valve 7 of novel construction and shown more particularly in Figs. 7, 8 and 9. This check valve consists of two castings 8 and 9, respectively, which are secured together by suitable screw threads as shown inFig. 8, and their general I outline is similar to an ordinary union but differing in some respects. These castings are preferably made out of brass and plated with tin so as not to contaminate any liquid with which they come in contact. The casting 8 has a suitable boss 10 which is suitably screw-threaded and connected tothe pipe 2. It also has lugs 11 which receive screws 12 on which is a washer 13 that binds in place a packing 1-1. This packing 14 is perforated and a screw 15 passes through this perforation and carries at the end next its head a washer 16 and at theotherend a suitable weight 17. The part 9 is provided with a screw-threaded boss 18 adapted to be connected to the carbonator 3 by any suitable joint or connection.

When the apparatusis in use the hydrant pressure is sulficient to force the packing 14 into the chamber 20; between the castings 8 and 9 and away from-the boss 10 whereby a free flow of liquid is permitted when the carbonator is vented. When the pressure in the carbonator 3 is increased, in a manner. described below, so as to be in excess of the pressure of the hydrant water passing through the filter 1, the packing 14 is forced against the casting 8 and forms a gastight and watertight joint therewith, thereby making the parts just described an efficient check valve.

The carbonator 3 consists of a shell 21" which is preferably. made cylindrical in its central portion and hemispherical at one end and flanged at the other. The hemispherical end has a projection 22 which is adapted to be connected to the check valve 7 by any suitable means and the fiange23 is secured to a cover 24.- by means of bolts 25 and separated therefrom by means of a suit- I able packing 26 whereby a gastight and watertight joint may be at all times formed between the cover and the shell 21.

The top of the shell 21 is suitably perforated and provided with a bushing 27 which carries a suitable safety valve 28. This safety valve 28 is composed of a casting 29 in which is a seat on which rests a small plug 30 that is pressed tight by a spring 31 and the tension of the spring is varied by a screw plug 32 which is concealed by a cap 33 secured to said casting 29. The casting 29 also has a perforation 34 through which the excess gases escape when the pressure in the carbonator 3 exceeds a certain predetermined amount.

The cover 24 is provided near its top with a bushing 35 to which is secured a suitable washer 36 and a union 37 which connects with an ordinary hand vent valve 38 which is also connected with vent valve 39 shown in detail in Figs. 4, 5 and 6. The vent valve 39 is provided at its lower end with a suitable plug 40 with internal and external screw threads and to it is secured a casing 41 which is screw-threaded to the internal screw-threads and a packing 42 makes a tight joint between the parts 40 and 41.

The casing 41 has a central perforation and an inwardly extending collar 43. At its upper end it is provided with a perforated screw-plug 44 which is secured therein and on its exterior is a screw-threaded collar 45 with upwardly extending ears 46 between which is fulcrumed a lever 47 mounted on a suitable fulcrum 48 which is held in place by suitable cotter pins 49. The collar 45 is held in place by a suitable set screw 50. The lever 47 may be weighted if desired, but this is unnecessary in most cases. It rests on a spindle 51 which runs through the collar 43 and has an enlarged lower end provided witha packing 52 which is adapted to fit snug against the collar 43 and form a gastight joint therewith when the spindle 51. is raised so that this packing presses against said collar. When for any reason it is desired to ventilate the interior of the mixer 3 by hand this may be done by manually operating the lever 47 so as to permit the packing 52 to be lowered from its seat, at which time the inte rior of the mixer 3 is vented as the gases can escape through the valve 39. Such a use of this vent 39 is necessary at many times when repairs are required.

As stated above, the flow of liquid into the 'carbonator 3 is through the check valve 7 and is governed entirely by the pressure in the interior of the said carbonator 3. The pressure-controlling means consists of a valve mechanism governed by a float which permits carbonic acid gas to enter or to be shut off. This particular part of the apparatus is composed as follows :-The

casting 54 is bolted to the cover 24 and carries a spindle 55 which has a float lever 56 whichcarries an ordinary fioat 57 which may be brought into any desired position upon said rod and held thereon in the conventional manner, as by set screw 58.

The casting 54 which is bolted to the cover 24 is complex in its structure and is provided with two parallel and .vertically disposed branches 59 and 60, respectively, which branches are located immediately below the fulcrum 55 and are provided with longitudinally disposed and parallel perforations or ports in which are plungers 61 and 62 respectively. The plungers may be made identical as shown, so that a description of one will answer for both. Each consists of a valve stem 63, which has at its bottom a screw cap 64 on which rests a conicalwasher 65, that is adapted to close one end of a vent or port. In the branch 59 this packing 65 closes a port 66 and in the branch 50, this packing 65 closes a port 67. Each port 66 and 67 is bent at right angles and extends through a screw-threaded lug. This lug on the branch 59 is designated by the numeral 68 and on the other branch by the numeral 69. Just above where the ports 66 and 67 turn, as above described, the stem 63 in each instance passes through a suitable perforation provided with a packing on top of which rests aspring seat 71 which confines the packing and also serves the function of a seat for a coil spring 72 which in turn is surmounted by a cap 73 fixed to the rod 63. Each cap 73 is made 100 hollow as shown and provided with a smaller coiled spring 74 which is surmounted by cap 75, that rides on the rod 83 and engages a cam which will be described below. The plunger 62 is not necessarily 105 made this way but may have the coil spring 74 entirely omitted and the cap 75 made integral with the cap 73, which simplifies the construction somewhat, but makes the parts so that they are not united and interchange- 110 able with the plunger 61. The bores in which the plungers 61 and 62 are placed are somewhat enlarged in their upper ends as shown so as to permit the caps 73 and spring seats 71 as well as the coil springs 115 72 to have ample room for movement.

The plunger 61 has its cap 75 rubbing against a cam 76 loose on the fulcrum 55 and resting snug against one of the two branches of the lever 56. This cam 76 is 120 preferably shaped as shown with a recess 77, the opposite walls of which are adapted to impinge against a pin 78 fixed in the adjacent branch of the lever 56 so as to permit a limited angular movement of the 125 lever 56 without shifting the cam 76. The operative surface 7 9 of the cam 76 is made so as to impinge against the cap 75, which in turn is adapted to compres the small coiled spring 74, while, the cam 76 has a slight angular movement and when the point of contact ofthe cap and cam 76 gets a little farther from-the fulcrum 55 the spring 72 is then compressed and opens the valve by forcing the stem 63 downwardly so as to move the packing 65 from its seat. When the cam 76-is shifted in the opposite direction the operations take place in the reverse order, whereby the cam permits the spring 72 to close the valve. The plunger .62 is operated in the same way or substantially the same way as the plunger 61, just as described, but is differently timed because the cam 80 is fixed to the branch of the lever 56 by a screw 81 or other suitable means which so places the cam 80 that the plunger .62 will be depressed when the plunger 61 is elevated, and vice versa. It is obvious that if the spring pressed cap 7 5 is omitted from the plunger 62 and a cap rigid with the cap 73 substituted, the valve controlled by this plunger 62 will open and close more gradually. The branch of the lever 56 adjacent to the cam 80 has a recess 82, the side walls of which impinge against a pin 83 fixed in the casting 54 so as to limit the angular movement ofthe lever 56. The cams 76 and 80 are so arranged and disposedthat the plunger 61 is depressed when the lever 56 is at or near the upper limit of its movement and the plunger 62 is depressed when the lever 56 is at or near the lower limit of its movement, so that when the liquid is low in the carbonator 3, the carbonator is vented to atmospheric air through the branch 60 and port 67 and when the liquid has filled the carbonator to a sufficiently high level the carbonator has this vent closed and shortly thereafter the pressure in the carbonator is raised by the opening through the bore 66, which gives this carbonator the pressureof the carbonic acid gas used for impregnation.

The casting 54: is held in proper position on the cover 2 by a lug 84% which extends therefrom at a right angle as shown and is provided with suitable screw-threads 85 to which a nut 86 is attached and also by means of pipes 87 and 88, which pass through said cover and are connected to said casting 55 by suitable unions, the pipe 87 being secured to the lower end of the branch 59 and the pipe 88 to the projection 69 on the branch 60. The lower end of the branch 60 is connected to a suitable vent pipe 89 by a suitable union 90 and this vent pipe 89 runs to near the top of the carbonator 3. The branch 68 is connected by a union 91 to a pipe 92 that runs to near the bottom of the carbonator 3 and through this pipe 92 the carbonic acid gas is adapted to flow and bubbles up through the liquid of said carbonator. From the foregoing it will be obvious that the pressure of the carbonic acid gas through the pipe 87 tends to hold the valve in the branch 59 to its seat when said valve is closed and the pressure in the carbonator tends to hold the valve in the branch 60 to its seat when this valve is closed.

Nearithe bottom and center of the cover 24 is an outlet pipe 93 connected in any suitable manner and preferably provided with a hand valve 9 1 shown in Fig. 2, but

' omitted from Fig. 1. This valve 9 1; is usea suitable pipe 97 to the pipe 98 which runs to the pipe 87, and the pipe 98 is connected to the carbonic acid gas reservoir 4 through the usual reducer 99 and conventional connections 103 in the customary manner. The mixer 96 may be omitted, if desired, as it is not essential. The pipe 98 as well as the pipes 97 and 93 are provided with suitable hand valves wherever desired. The reservoir 5 is connected with the refrigerator 6 by'means of suitable pipes 100 and 101 connected in the conventional manner whereby the liquid may be allowed to circulate from I the reservoir 5 to and through the refrigerator 6 and thence back to the reservoir 5, and

the carbonated liquid is preferably cooled in this refrigerator 6 and then drawn off for use by any suitable means, not shown. The pipe 100 is connected'so as to drain from the bottom of the tank 5 and the pipe 101 vents from the top when the valve 102 is. open. This valve 102 is closed except when a little carbonic acid gas is passed into the cooler 6.

In view of the foregoing the operation of the apparatus will be readily understood. Assuming the parts to be connectedas shown in Fig. 1 it is operated as follows: Water flows freely through the filter 1, pipe 2, and check valve 7 into the carbonator 3, thereby expelling the air through the vents as above described. The float controlled vent is closed before the float rises to its upper limit; when this vent is closed, the gas may continue to escape through the valve 39 until the float rises to its upper limit and'the gas supply valve is open; the valve 39 is then automatically closed. The carbonic acid gas passes through the liquid in the carbonator 3 and carbonates the same and when this liquid is sufficiently carbonated, it is drawn through the pipe 93 into the reservoir 5'and it may be further carbonated in transit, if desired, through the second car-.

bonator mixer 96. From the tank 5 the liquid passes through the pipe 100 to the refrigerator 6, from whence it is withdrawn for use from time to time. When the liquid in the carbonator 3 gets low, the carbonic acid gas supply is cut off as above described, the vent S8 is opened and then water can flow freely through said check valve 7 until the supply is replenished and then the cycle of operations above described is repeated and this may be repeated indefinitely. The check valve 7 always permits water to flow when the pressure in the carbonator 3 falls below the hydrant pressure and always stops the flow of water into the carbonator 3 whenever the pressure of said carbonator rises above that point, as it does when the valve in the branch 59 is opened.

While I have shown and described one embodiment of my invention, it is obvious that it is not restricted thereto but is broad enough to cover all structures that come within the scope of the annexed claims.

What I claim is:

1. In an apparatus for carbonating liquids, a arbonator and a receiving tank, a liquid supply pipe for the carbonator, a pressure supplying pipe for the carbonator, a pressure supplying pipe for the receiving tank and a liquid conveying pipe connecting the carbonator and tank, a pressure outlet pipe for the carbonator, valves for the pres sure outlet pipe and for the pressure conveying pipe of the carbonator, rotary cam disks for temporarily opening said valves and a float for oscillating the cam disks to open these valves at predetermined heights of liquid.

2. In an apparatus for carbonating liquids, a carbonator and a receiving tank,

a liquid tube common to the carbonator and receiving tank for conveying liquid from the carbonator to the receiving tank, a gas supply tube made to communicate with said carbonator, a liquid supply pipe made to communicate with said carbonator, a pres sure relief tube for the carbonator, valves for the pressure relief tube and for the gas supply tube respectively, a float in the carbonator' and cams actuated by the float for actuating the valves.

3. In an apparatus for carbonating liquids, a carbonator, a water supply pipe connected with said carbonator, a vent for said carbonator which will open when the pressure in said carbonator gets below a certain predetermined amount and a pair of valves in said carbonator, one of said valves being adapted to be connected with a source of gas supply and the other of said valves being connected with a second vent, a float in said carbonator and means connecting said float and valves whereby the movement of said float will control said valves.

4. In an apparatus for carbonating liquids, a carbonator and a vent composed of a casting with a perforated partition, a spindle passing loosely through said pen. foration and carrying a packing that is adapted to fit snug against said partition whereby a gastight and waterti ht joint is formed when the pressure in the carbonator exceeds a certain predetermined amount and a lever resting on said spindle.

Signed at the city, county and State of New York, this 1st day of June, 1909.

PETER E. MALMSTROM. lVitnesses:

GUSTAVE I. ARONOW, HARRY RADZINSKY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

